Antiskidding device



" skidding Devices, ofwhich the following is a specification, reference being had to the nire. ra

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` JoHN c. DUPLER, or MARIETTA, ,PENNSYLVANIA ANTIsKInDING DEVICE.

State of Pennsylvania, lhave invented cer-v tain nevi7 and useful Improvements in Anti.

accompanying drawings.

This invention relates to anti-skidding de? vices "forI wheel structures and is particu'- larly V(Viesigned and adapted for use in con- Anection with a wheel structure embodying a conventional type of pneumatic tire, and it is an object of the invention to provide a novel and improved device of this general.

character including aplurality of hingedly.

connected plates-extending circumferentially of the tread; portion of the wheel structure when the device, is applied, together with,`

means whereby the device may be effectively maintained in applied position.-

The inventiom consists in the details o v.construction and in the combination and arrangement of the several parts of my improveddevice whereby certain important advantages are attained and the device ren-l`v dered simpler, lesseXpensive and otherwise more convenient'and.advantageous for use',v as will be hereinafter more fully setforth.

, The novel featuresv of my invention will hereinafter be definitely claimed.

ln order that my invention may be the better understood, l will now proceedto describe the same with reference to the accompanying drawings, wherein:

Figure l is a fragmentary view `in .side

elevation illustrating an antiskidding d e-v vice constructed in accordance with anembodiment of'my invention and in appliedy position; Fig. 2 is a fragmentary view in top .plan of myQanti-skidding device unapplied; and

Pig. 3 is an enlarged fragmentary.'- view partly in section and 'partly in elevation illustrating in detail the hinged .connection between adjacent plates and theniean's for.

securing the branch chains theretog` n l is fragmentary viewvin sideeljevation illustrating tying n eans or cou-'-kv pling adapted for coaction-with a side chainc l is disclosed in ...the accompanying drawf-'. ings, my improved anti-skidding devicecoinprises a plurality of substantially. diamond shaped plates P, longitudinally aline'd when connection..

Specification of Letters Patent. Patented Sept.- 21, 1920.

Application filed March 29,-1920. vSerial No. 369,63@

assembled and circumferentially spaced when in appliedposition upon a wheel structure.

' Each of the plates P possesses a certain devcenter with a series of transversely disposed gripp'ing lugs l and wi th a gripping lug'2 'adjacent each end thereof. One end .portion of 'each of the plates P isv provided .with an extension 3, 4preferably integrally formed therewith' and which is provided ywith a knuckle 4, and the: opposite end portion'of the plate is\ provided with a pair of transversely spaced knuckles 5. .The knuckle 4 o f oneadj'acent plate is adapted to seat between the knuckles 5 of the plate adjacent thereto and disposed through said assembled knuckles -t and 5 is abolt 46 or the like whereby adjacent lplates .P are integrally connected. Mounted upon the opposite end portions of the bolt 6, or the like,v and surrounding the same are the annular plates 7, each provided with an outstandin loop 8 disposed radially thereacross and eectiv'ely .secured'to the peripheral portion of said plate.

lCoacting with the opposite sides of a wheel structure in a well known manner are the side chains C and each of said side chains C, at predetermined pointsth'erealong, is provided with the inwardly disosed and laterally directed branch chains Certain of said chains vB arez also secured to the loopsl 8, `hereijnbefore referred secured to the side apex portions of the 'plates P and for which reason, said portions of the plates P are provided: withthe openings 9 to facilitate such engagement or Either or both of the chains C may have interposed therein a tying or ,connecting vmedium 'of any ordinary or preferred type and as vparticularly illustrated in Fig. l the ltying onconnecting medium comprises a hook member l0 having its shank freely engaged with an end portion of thechain C and4 provided with an elongatedy bill 1l `adapted to be inserted through the link at vthe opposite end` of the-chain.

Coacting with the bill ll is a holding member l2 coinprising an annular member or the like slidably engaged with a link of the chain jacent the end of the chain to which thehook member l0 is anchored. -The outer end por'- tion of the 'bill 11 isA Vprovidedwith a'n .outstanding lug 14 whereby means areprovided `for holding the member l2 from being moved out of operative coaction with the bil111.'.. My improved device, when not applied t0 a wheel structure, may-also be folded or compacted within a relative small space so` that the same may be readily transported. .Y

From the foregoingdescription,l 'it is thought to be obvious that a device constructed'in accordance with my invention is particularly well adapted for useby reason of the convenience and facility with which l it may be assembled and operated, and`A it will also be obvious that my invention is susceptible of some change and modificationy Without departing fromv the principles and spirit thereof, and for this reason I do not .wish to be understood as limitingmyself to the precise `arrangement and formation of the several partsy herein shown in carrying out my invention in practice except as herein'after claimed. 1 I claixnz' l.` A device of l,the -character described comprising, in combination, a series .of

plates, adjacent end portions of the plates v being provided with interfitting knuckles, a connecting member disposed through the interitting knuckles whereby adjacent plates .are hingedly connected,` side chains, and

branch chains operatively engaged "with the side chains and with the opposite end portions of the connecting members. 1

`. 2. A device of the character described i comprising, in combination, a plurality of plates, the opposed end portions of adjacent plates 'beingprovided with intertting knuckles, members passing through said interfitting knuckles whereby adjacent `plates are hingedly connected, loop' members en,

plates, the opposed end portions of adgacent tting'.

plates/being' provided with inter knuckles, members passing through saidinf terfitting knuckles. whereby adjacent plates are hingedly connected, loop members engaged with theopposite end portions of the first namedmeinbers, side chains, and branch cha-insoperatively engaged withA the side vchains and the loop members, each of said lloop members including an annular platey surrounding an end'portion of [one of the first lnamed members.

In testimony whereof I hereunto afx my" signature. l

JOHN DUPLER. 

